2005 Problem With Idle Air Bypass Valve May Cause Engine Performance Problems

If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve . This valve helps the vehicle idle steady when the accelerator pedal is not pressed.

Affected Model Years

This issue affects model years 1990, 1991, 1998, 1999, 2000, 2001, 2005, 2006, .

30 people reported this problem

  • 2005 103,000 Miles
    Engine turns over, but cuts off when I put it into gear. I have to sit with my foot on the gas pedal to keep it going. Usually, after 10-15 minutes - and several attempts - it will continue running when I take my foot off the gas pedal...then, I can go and it will keep running. Once in a while (1 in every 10-15 times) when I start it, it will immediately just run like it's supposed to.

  • 2005 149,000 Miles
    When accelerating between 1st and 2nd gear, there is a lengthy shift time, also I notice when pressing slightly harder on gas pedal while already in travel, it is not responsive as a v-8 should be with quick acceleration. It seems as either gas is not traveling through the gas pump at the required rate, or after getting my intake replaced, that possibly one of the (pistons/cylinders) could be bad, or may have a compression leak. No smoke or stalls and no problems starting when cold. Thanks!

  • 2005 75,000 Miles
    it starts up and than it shuts off but starts back up. can anyone help me with this problem.

  • 2005 0 Miles
    my car cuts off when i crank it but if i give it gas it will stay running Take my foot off it cuts off then crank back up

  • 2005 154,000 Miles
    It act like it don't want to start then when it do it shakes and act like it want to cut off. Then when I start going it takes acouple secs to get to the next gear and to accelerate

  • 2005 151,100 Miles
    Cold starts difficult (long crank and had to throttle engine to keep idle going.)

  • 2005 107,000 Miles
    The car will not run at an idle so were replacing the Idle Air Bypass Valve!

  • 2005 160,000 Miles
    When sitting at a red light and our car begins to idle its temperature starts to rise.

  • 2005 132,234 Miles
    Intank manifold leaking water from the back by the number 8 spark plug and cracked from the front